﻿#region License
// Copyright (c) Dmitry Antonenko (http://hystrix.com.ua)
// 
// Licensed under the Apache License, Version 2.0 (the "License"); 
// you may not use this file except in compliance with the License. 
// You may obtain a copy of the License at 
// 
// http://www.apache.org/licenses/LICENSE-2.0
// 
// Unless required by applicable law or agreed to in writing, software 
// distributed under the License is distributed on an "AS IS" BASIS, 
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
// See the License for the specific language governing permissions and 
// limitations under the License.
// 
// The latest version of this file can be found at http://fluentfilters.codeplex.com/
#endregion

namespace FluentFilters
{
    using System;
    using System.Web;
    using System.Web.Mvc;
    using System.Web.Routing;

    public class FluentFiltersControllerFactory : DefaultControllerFactory
    {
        protected override IController GetControllerInstance(RequestContext requestContext, Type controllerType)
        {
            IController icontroller;

            if (controllerType == null)
            {
                throw new HttpException(404, String.Format("The controller for path '{0}' could not be found or it does not implement IController.",
                                        requestContext.HttpContext.Request.Path));
            }

            if (!typeof(IController).IsAssignableFrom(controllerType))
            {
                throw new ArgumentException(string.Format("Type requested is not a controller: {0}", controllerType.Name), "controllerType");
            }

            try
            {
                icontroller = (IController) Activator.CreateInstance(controllerType);

                var controller = icontroller as Controller;
                if (controller != null)
                {
                    // Set custom ActionInvoker
                    controller.ActionInvoker = new FluentFiltersActionInvoker(FluentFiltersBuilder.Current);
                }
            }
            catch (Exception ex)
            {
                throw new InvalidOperationException(String.Format("Error resolving controller {0}", controllerType.Name), ex);
            }

            return icontroller;
        }
    }
}
